# v86

9 Hacker News commenters recommended v86 and 3 criticized it, November 2025 to November 2026. It was recommended in 7 of 13 months.

**Verdict:** Free browser-based x86 emulator that boots real Linux and other operating systems in a web page, handy for sharing OS demos. Main caveat: it is 32-bit only.

## Why people recommend it

- Easy to share OS demos (6 comments): "it's so much easier to send people a link to a web page to poke at your OS than to send them an image" ([source](https://news.ycombinator.com/item?id=45891040)) "v86 is a really cool idea, having Aurion OS run in a browser would be amazing for demos." ([source](https://news.ycombinator.com/item?id=47355974)) "It's always fun to have an in browser demo of a little OS like this." ([source](https://news.ycombinator.com/item?id=47056747))
- Good for hobby OS projects (4 comments): "v86 is a really cool idea, having Aurion OS run in a browser would be amazing for demos." ([source](https://news.ycombinator.com/item?id=47355974)) "A browser environment shows the thing quite well; and easy networking is cool too." ([source](https://news.ycombinator.com/item?id=47313345)) "It's always fun to have an in browser demo of a little OS like this." ([source](https://news.ycombinator.com/item?id=47056747))
- Maintainers accept contributions well (2 comments): "It's a nice project, and they've taken three PRs from me (so far)" ([source](https://news.ycombinator.com/item?id=45892131)) "I've had a wonderful experience with submitting PRs" ([source](https://news.ycombinator.com/item?id=47355764))

## What people warn about

- No 64-bit x86 support (3 comments): "Apptron uses v86 because its fast. Would love it for somebody to add 64-bit support to v86" ([source](https://news.ycombinator.com/item?id=47315827)) "currently v86 is 32-bit only and OCaml 5 has dropped support for native 32-bit backends" ([source](https://news.ycombinator.com/item?id=48550000)) "x86_64 is not supported yet" ([source](https://news.ycombinator.com/item?id=47313191))

## Alternatives hackers recommend

- [FEX-Emu](https://hackerapproved.com/p/fex.md): 23 recommend
- [Box64](https://hackerapproved.com/p/box64.md): 7 recommend

## Cite as

Hacker Approved, "v86", https://hackerapproved.com/p/v86/ (counts from 1,795,640 Hacker News comments, November 2025 to November 2026).